UNITBIT #5 STEP DRILL
10 step, single-flute cutting edge for greater-control through steps for holes 1/4" to 1-3/8"Hex shank prevents slipping in drill chuckSpeedPoint tip penetrates faster than -previous Unibits & prevents walkingIdeal for drilling holes in thin materials -such as stainless steel, copper, brass, -aluminum, plastic and laminates